UNISONIC TECHNOLOGIES CO., LTD 75185 LINEAR INTEGRATED CIRCUIT MULTIPLE RS-232 DRIVERS AND RECEIVERS TSSOP-20 DESCRIPTION SSOP-20 The UTC 75185 complies with the requirements of the TIA/EIA232-F and ITU (formerly CCITT) v.28 standards. These standards are for data interchange between a host computer and peripheral at signaling rates up to 20kbit/s. The switching speeds of the UTC 75185 are fast enough to support rates up to 120kbite/s with lower capacitive loads (shorter cables). Interoperability at the higher signaling rates cannot be assured unless the designer has design control of the cable and the interface circuits at both ends. For interoperability at signaling rates to 120kbit/s, use of ITA/EIA-423-B (ITU v.10) and TIA/EIA-422-B (ITU v.11) standards are recommended. SOP-20 DIP-20 FEATURES *Single Chip with Easy Interface between UART and Serial-Port connector of PC. *Three Drivers and five Receivers Meet or Exceed the Requirements of TIA/EIA-232-F and ITU v.28 Standards. *Designed to Support Data Rates up to 120 kbps ORDERING INFORMATION Normal 75185-D20-T 75185-P20-R 75185-R20-R 75185-S20-R Ordering Number Lead Free Plating 75185L-D20-T 75185L-P20-R 75185L-R20-R 75185L-S20-R www.unisonic.com.tw Copyright © 2010 Unisonic Technologies Co., Ltd Halogen Free 75185G-D20-T 75185G-P20-R 75185G-R20-R 75185G-S20-R Package Packing DIP-20 TSSOP-20 SSOP-20 SOP-20 Tube Tape Reel Tape Reel Tape Reel 1 of 10 QW-R113-003,F 75185 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATIONS VDD RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 VSS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCC RY1 RY2 RY3 DA1 DA2 RY4 DA3 RY5 GND PIN DESCRIPTION PIN NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SYMBOL VDD RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 VSS GND RY5 DA3 RY4 DA2 DA1 RY3 RY2 RY1 VCC PIN DESCRIPTION Supply Voltage First Receiver Input Second Receiver Input Third Receiver Input First Driver Output Second Driver Output Fourth Receiver Input Third Driver Output Fifth Receiver Input Supply Voltage Ground Fifth Receiver Output Third Driver Input Fourth Receiver Output Second Driver Input First Driver Input Third Receiver Output Second Receiver Output First Receiver Output Supply Voltage UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 10 QW-R113-003,F 75185 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE (unless otherwise specified) PARAMETER SYMBOL VDD VSS VCC Supply Voltage (Note 1) Drive Receiver Input Voltage Range VIN Driver Output Voltage Range Receiver Low Level Output Current Storage Temperature Range VOUT IOUT TSTG RATINGS 15 -15 10 -15 ~ 7 -30 ~ 30 -15~ 15 20 -65 ~ +150 UNIT V V V V V V mA °C RATINGS 70 UNIT THERMAL DATA PARAMETER SYMBOL DIP-20 SOP-20 100 θJA °C/W SSOP-20 115 TSSOP-20 115 Note 1: All voltage are with respect to the network ground terminal. Note 2: The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero. Junction to Ambient RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage Input Voltage (Driver Only) High Level Output Current Low Level Output Current High Level Low Level Drive Receiver Drive Receiver SYMBOL VDD VSS VCC VIH VIL TYP 9 -9 5 MAX 15 -15 5.5 0.8 -6.0 -0.5 6 16 70 IOH IOL Operating Free-Air Temperature MIN 7.5 -7.5 4.5 1.9 TA 0 UNIT V V V V V mA mA °C SUPPLY CURRENTS PARAMETER Supply Current From VDD Supply Current From VSS Supply Current From VCC SYMBOL IDD ISS ICC TEST CONDITIONS VDD VSS 9 -9 No load. 12 -12 All inputs at 1.9V 15 -15 9 -9 No load. 12 -12 All inputs at 0.8V 15 -15 9 -9 No load. 12 -12 All inputs at 1.9V 15 -15 9 -9 No load. 12 -12 All inputs at 0.8V 15 -15 No load. All inputs at 5V, VCC=5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN MAX 15 19 25 4.5 5.5 9 -15 -19 -25 -3.2 -3.2 -3.2 30 UNIT mA mA mA mA mA 3 of 10 QW-R113-003,F 75185 LINEAR INTEGRATED CIRCUIT DRIVER ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING FREE-AIR TEMPERATURE RANGE (VDD=9V, VSS=-9V, VCC=5V, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT High Level Output Voltage VOH VIL =0.8V, RL =3 kΩ (Figure 1) 6 7.5 V Low Level Output Voltage (Note 3) VOL VIH =1.9V, RL =3 kΩ (Figure 1) -7.5 -6 V High Level Input Current IIH VIN =5V (Figure 2) 10 μA Low Level Input Current IIL VIN =0V (Figure 2) -1.6 mA High Level Short Circuit Output Current IOS(H) VIL =0.8V, VOUT =0V(Figure 1) -4.5 -12 -19.5 mA (Note 4) Low Level Short Circuit Output Current IOS(L) VIH =2V, VOUT =0V(Figure 1) 4.5 12 19.5 mA Output Resistance (Note 5) ROUT VDD =VSS=VCC=0V, VOUT =-2 to 2V 300 Ω Note 3: The algebraic convention, where the more positive (less negative) limit is designated as maximum, is used in this datasheet for logic levels only (e.g. if -10V is a maximum, the typical value is a more negative voltage). Note 4: Output short circuit conditions must maintain the total power dissipation below absolute maximum ratings. Note 5: Test conditions are those specified by TIA/EIA232-F and as listed above. DRIVER SWITCHING CHARACTERISTICS (VDD=12V, VSS=-12V, VCC=5V, TA=25°C) PARAMETER Propagation Delay Time Level Low to High Output High to Low SYMBOL TEST CONDITIONS MIN TYP MAX UNIT tPLH RL=3 to 7 kΩ, CL=15pF (Figure 3) 315 500 ns R =3 to 7 kΩ, C =15pF (Figure 3) tPHL 75 175 ns L L RL=3 to 7 kΩ, CL=15pF (Figure 3) 60 100 ns Transition Time Level Output Low to High tTLH RL=3 to 7 kΩ, CL=2500pF 1.7 2.5 μs (Note 6,Figure 3) RL=3 to 7 kΩ, CL=15pF (Figure 3) 40 75 ns Transition Time Level Output High to Low tTHL RL=3 to 7 kΩ, CL=2500pF 1.5 2.5 μs (Note 7, Figure 3) Note 6: Measured between -3V and 3V points of the output waveform (TIA/EIA-232-F conditions), all unused inputs are tied. Note 7: Measured between 3V and -3V points of the output waveform (TIA/EIA-232-F conditions), all unused inputs are tied. RECEIVER ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING CONDITIONS (TA=25°C, VCC=5V, VDD=9V, VSS=-9V) PARAMETER SYMBOL Positive Going Threshold Voltage VT + Negative Going Threshold Voltage Input Hysteresis (VT+ - VT-) VT VHYS Output Voltage High level VOH Low level VOL High level IIH Low level IIL Input Current Short-Circuit Output Current IOS TEST CONDITIONS (Figure 5) TA=25°C TA=0°C to 70°C VIH=0.75V Inputs Open VIN=3V, IOL=10mA VIN=25V (Figure 5) VIN=3V (Figure 5) VIN=-25V (Figure 5) VIN=-3V (Figure 5) IOH=-0.5mA MIN TYP MAX UNIT 1.75 1.55 0.75 0.5 2.6 2.6 1.9 V 0.97 2.3 2.3 1.25 4 5 0.2 0.45 8.3 3.6 0.43 -3.6 -0.43 (Figure 4) V -8.3 -3.4 V V -12 V mA mA mA RECEIVER SWITCHING CHARACTERISTICS (VDD=12V, VSS=-12V, VCC=5V, TA=25°C) PARAMETER Propagation Delay Time Level Output Transition Time Level Output Low to High High to Low Low to High High to Low SYMBOL TEST CONDITIONS RL=5 kΩ, CL=50pF tPLH (Figure 6) tPHL tTLH tTHL UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP 107 42 175 16 MAX 500 150 525 60 UNIT ns ns ns ns 4 of 10 QW-R113-003,F 75185 LINEAR INTEGRATED CIRCUIT PARAMETER MEASUREMENT INFORMATION DRIVER TEST CIRCUITS: Figure 1. For VOH, VOL, IOS(H), IOS(L) Figure 2. For IIH, IIL DRIVER VOLTAGE WAVEFORMS: Figure 3. Note 1. The pulse generator has the following characteristics: tw=25μs, PRR=20kHz, Zo=50Ω, tr=tf<50ns. 2. CL includes probe and jig capacitance. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 10 QW-R113-003,F 75185 LINEAR INTEGRATED CIRCUIT PARAMETER MEASUREMENT INFORMATION (Cont.) RECEIVER TEST CIRCUITS: Figure 4. For IOS Figure 5. For VT, VOH, VOL RECEIVER PROPAGATION AND TRANSITION TIMES: 3V Input 50% Input VDD 50% 0V VCC tPHL Pulse Generator RL (see Note A) CL (see Note B) 90% Output VSS 50% 10% tPLH 50% 10% VOL tTLH tTHL TEST DIRCUIT VOH 90% VOLTAGE WAVEFORMS Figure 6. Note 1. The pulse generator has the following characteristics: tw=25μs, PRR=20kHz, Zo=50Ω, tr=tf<50ns. 2. CL includes probe and jig capacitance. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 10 QW-R113-003,F 75185 LINEAR INTEGRATED CIRCUIT APPLICATION INFORMATION Power-Supply protection to meet Power-Off fault conditions of TIA/TIA-232-F Diodes placed in series with the VDD and VSS leads protect the device in the fault condition in which the device outputs are shorted to ±15V and the power supplies are at low and provide low-impedance paths to ground. Typical Connection “*”: Refer Figure 10 to select the correct values for the loading capacitors (C1, C2, and C3), which are required to meet the RS-232 maximum slew-rate requirement of 30V/μs. The value of the loading capacitors required depends upon the line length and desired slew rate, but typically is 330 pF. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 10 QW-R113-003,F 75185 LINEAR INTEGRATED CIRCUIT LOGIC SYMBOL AND LOGIC DIAGRAM RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 2 3 4 5 6 19 18 17 16 15 7 8 9 14 RY4 13 DA3 12 RY5 RY1 RY2 RY3 DA1 DA2 RA1 RY1 RA2 RY2 RA3 RY3 DY1 DA1 DY2 DA2 RA4 RY4 DY3 DA3 RA5 RY5 CIRCUIT OF DRIVERS (Resistor value shown are nominal.) CIRCUIT OF EACH RECEIVER (Resistor value shown are nominal.) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 8 of 10 QW-R113-003,F 75185 Output Current, IOUT (mA) TYPICAL CHARACTERISTICS (DRIVER) Output Voltage, VOUT (V) LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 9 of 10 QW-R113-003,F 75185 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS (RECEIVER) Maximum Supply Voltage vs Free-Air Temperature Noise Rejection 6 VCC = 5V TA = 25°C See Note A 5 CC = 300pF 4 16 14 12 10 CC = 500pF 3 CC = 12pF 2 CC = 100pF 1 8 6 4 2 0 10 40 100 400 1000 4000 10000 Pulse Duration, tw (ns) 0 RL ≥ 3kΩ(from each output to GND) 0 10 20 30 40 50 60 Free-Air Temperature, TA (°C) 70 The maximum amplitude staring from 0V of a positive-going pulse that will not cause a change in the output level. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 10 of 10 QW-R113-003,F